This adds basic functionality for PS/2 passthrough on Synaptics
Touchpads using RMI4 through smbus.
Reviewed-by: NAndrew Duggan <aduggan@synaptics.com>
Signed-off-by: NLyude Paul <thatslyude@gmail.com>
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>